[patch] [media] dt3155v4l: unlock on error path

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We should unlock here and do some cleanup before returning.

We can't actually hit this return path with the current code, so this
patch is a basically a cleanup and doesn't change how the code works.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>

diff --git a/drivers/staging/media/dt3155v4l/dt3155v4l.c b/drivers/staging/media/dt3155v4l/dt3155v4l.c
index 073b3b3..3da17bc 100644
--- a/drivers/staging/media/dt3155v4l/dt3155v4l.c
+++ b/drivers/staging/media/dt3155v4l/dt3155v4l.c
@@ -398,7 +398,7 @@ dt3155_open(struct file *filp)
 		pd->field_count = 0;
 		ret = vb2_queue_init(pd->q);
 		if (ret < 0)
-			return ret;
+			goto err_free_q;
 		INIT_LIST_HEAD(&pd->dmaq);
 		spin_lock_init(&pd->lock);
 		/* disable all irqs, clear all irq flags */
@@ -407,11 +407,11 @@ dt3155_open(struct file *filp)
 		ret = request_irq(pd->pdev->irq, dt3155_irq_handler_even,
 						IRQF_SHARED, DT3155_NAME, pd);
 		if (ret)
-			goto err_request_irq;
+			goto err_free_q;
 	}
 	pd->users++;
 	return 0; /* success */
-err_request_irq:
+err_free_q:
 	kfree(pd->q);
 	pd->q = NULL;
 err_alloc_queue:
--
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